Question:
Identify from the following salts an example of a salt of strong acid and weak base.
Identify from the following salts an example of a salt of strong acid and weak base.
Show Hint
Look for a chloride or sulphate of a metal whose hydroxide is weak.
Updated On: Oct 1, 2026
- Ammonium acetate.
- Sodium acetate.
- Copper (II) chloride.
- Sodium carbonate.
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Check each salt
Ammonium acetate comes from a weak base and a weak acid. Sodium acetate comes from a strong base and a weak acid. Sodium carbonate comes from a strong base and a weak acid.
Copper(II) chloride, \(CuCl_2\), comes from \(HCl\), a strong acid, and \(Cu(OH)_2\), a weak base.
Step 2: Conclusion
So copper(II) chloride is the salt of a strong acid and a weak base. Its solution is acidic because \(Cu^{2+}\) hydrolyses.
Final Answer:
Copper(II) chloride is the required salt. \[ \boxed{\text{(C)}\ \text{Copper (II) chloride}} \]
Ammonium acetate comes from a weak base and a weak acid. Sodium acetate comes from a strong base and a weak acid. Sodium carbonate comes from a strong base and a weak acid.
Copper(II) chloride, \(CuCl_2\), comes from \(HCl\), a strong acid, and \(Cu(OH)_2\), a weak base.
Step 2: Conclusion
So copper(II) chloride is the salt of a strong acid and a weak base. Its solution is acidic because \(Cu^{2+}\) hydrolyses.
Final Answer:
Copper(II) chloride is the required salt. \[ \boxed{\text{(C)}\ \text{Copper (II) chloride}} \]
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